The BNS Pro incorporates a bio-organic engineering design for superb ergonomics: Rear stabilizer promotes PFR (Progressive Force Relief) and dissipate energy loads by transmitting them across the back and shoulders and away from spine (thoracic vertebrae),and is connected to the frames via pivot key

Frame construction promotes improved contact with helmet during impact – including rear support edge that fits closer to the body, extra width to account for different helmet sizes and raised chest to reduce hyper-flexion

Alpinestars has always led the way with their neck supports but these new
models set the bar incredibly high. They are available in two different
materials, a high performance, ultra lightweight carbon polymer compound and a
performance fiberglass resin. They are available in two size ranges. The first
covers sizes XS-M and the second covers sizes L-XL. The sizes are customized
using these interchangeable spacers. Unfasten these screws and the screws under
this cover to switch out the spacers and change the size. The closure system is
all new and allows the brace to be put on in fractions of a second. There are
powerful magnets in the closure that line up the tabs automatically so there is
no fumbling around. Releasing the unit is just as fluid. A gentle pull of this
cord disengages the mechanism. This system is also much easier for emergency
personnel to remove in the event of an injury. The brace can be completely
removed with little manipulation, minimizing movement of the head and neck. The
padding on the inside of the brace is fully removable and laminated in Lycra.
The pads removability facilitates use of this neck support with any of the BNS
compatible jackets or vest. Careful consideration was given to new helmet design
when creating the shape of the neck supports.
Alpinestars worked
with top helmet manufactures like
Shoei to make
sure that their top of the line neck braces would complement the shell shapes of
top of the line helmets.